Home / 911,282.86-1,367,216.77-438,002.54

Finding the Fourth Proportional to 911,282.86, 1,367,216.77 and 438,002.54

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Solution

The fourth proportional to 911,282.86, 1,367,216.77 and 438,002.54 is: 657,144.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,282.86 : 1,367,216.77 = 438,002.54 : x
  2. Step 2: Convert to fraction form
    911,282.86/1,367,216.77 = 438,002.54/x
  3. Step 3: Cross multiply
    911,282.86x = 1,367,216.77 × 438,002.54
  4. Step 4: Simplify right side
    911,282.86x = 598,844,417,990.60
  5. Step 5: Solve for x
    x = 598,844,417,990.60/911,282.86
  6. Step 6: Final answer
    x = 657,144.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.